three_lengths = input("please input three numbers,split by comma:")
three = three_lengths.split(',')
print(three)
print(int(three[0]))

a = int(three[0])
b = int(three[1])
c = int(three[2])

if (a+b>c) and (a+c>b) and (b+c>a):
    print("can be sanjiao")
else:
    print("can not be sanjiao")

if (a*a+b*b==c*c) or (b*b+c*c==a*a) or (c*c+a*a==b*b):
    print("is zhijiao sanjiao")

if (a==b) or (b==c) or (c==a):
    print("is dengxiao sanjiao")
